Machine for molding shoe bottom parts



Dec. 22, 1936. J. M. wHELToN MACHINE FOR MOL-DING SHOE BOTTOM PARTS FiledA Dec. 11, 1933 5 Sheets-Sheet l DerN 22, 1936.

J. M. WHELTON MACHINE FOR MOLDING SHOE BOTTOM PARTS Filed Dec. ll, 1935 3 Sheets-Sheet 2 Dec. 22, 1936. J; M. WHl-:LTON 2,055,465

MACHINE FOR MODDING SHOE BOTTOM PARTS Filed Dec. 11, 1955 :5 sheets-'sheet s Patented Dec. Z2, 1936 Uil MACHINE Fon Momma SHOE Horror/i raars .lohn M. Whelton, Peabody, Mass., assigner to United Shoe Machinery Corporation, Paterson, N. J., a corporation of New Jersey Application December 1l, 1933, Seria-l No. 701,814

32 Claims.

'I'his invention relates to machines for molding shoe bottom parts and is herein illustrated as embodied in a machine which is particularly 842, filed May 8, 1933.

The present application is a continuation in part of the above-mentioned application Serial No. 600,921.

stiffener.

As set forth in said applications, the

insole and the reinforcing piece are secured together by means of suitable adhesive, for example lateX, and the shank stiffener, originally shaped to correspond to the longitudinal curvature ultimately to be imparted to the insole and the reinforcing piece, is interposed between those members and secured in place by any suitable means such, for example, as tacks or prongs r formed on the stiffener. The said copending applications also disclose novel methods of making a`shoe bottom or insole unit such as that just described.

One object of the present invention is to provide simple and reliable means for use in molding and securing together the parts of shoe bottom or insole units and for locating the co-mponent parts of such units relatively to each other and/or for locating the units or parts thereof relatively to the molding instrumentalities.

With the above object in View, the invention provides a novel machine for use in making shoe bottom units which comprises relatively movable pressure-applying members, a form carried by one of said members, a pad carried by the other of said members, and a gage member for relatively locating the form and the pad constructed and arranged to engage also a shoe bottom member to be operated upon and to locate the shoe bottom member relatively to the form and the pad. As herein illustrated, a gage is provided for engaging a shoe bottom part to be molded and locating the part lengthwise relatively to the form and the pad, and, for the purpose of preventing the gage from interfering with relative movement of the form and the pad into cooperative molding relation.

As shown also,

means is provided for locating the shoe bottom part widthwise with respect to the form and the pad and this means comprises gages which are normally arranged so that they project into the path of relative movement of the form and the pad and which are displaced out of their normal operative positions by the means which displaces also the gage for determining the lengthwise location of the shoe part. The illustrated form is shaped to impart both lengthwise and crosswise curvature to the shank portion of an insole and a reinforcing piece which is assembled with the insole and which, together with a metallic shank stiffener, constitutes a so-called shoe bottom or insole unit. As shown, the form is movable toward and from the pad and the gages are movable with the form as the latter moves toward the pad until movement of the gages is arrested just prior to the arrival of the form in a position for cooperating with the pad, whereupon continued movement of the form results in effecting relative displacement of the form and the gages to prevent the latter from interfering with the molding operation. In one form of the invention herein shown the lengthwise relation of the shoe bottom part to the form is determined by means of a gage which engages the heel end of the form and a corresponding edge portion of the shoe part and which functions also to locate the heel portions of the form and heel part transversely with respect to the pad. In another form of the invention also shown herein, the means :for determining the lengthwise location of the workv relatively to the form and the pad is particularly designed for use in connection with an insole unit such as that disclosed in copending application Serial No. 669,842, above referred to, and cornprises a gage which is normally located in operative position between the form and the pad for engagement with the front end of the shank stiiener member of the unit and which is adapted to be displaced as the form moves toward the pad so as to avoid interference with the molding of the unit.

.The invention further consists in features of construction and combinations and arrangements of parts hereinafter described and claimed the advantages of which will be apparent to those skilled in the art.

In the drawings,

Fig. l is a plan view of a device which may be employed for therpurpose of molding shoe buttom units, illustrating particularly the means employed for relatively locating the component parts of the unit and also for locating the unit relatively to the molding instrumentalities;

Fig. 2 is a view, in front elevation, of the device shown in Fig. l;

Fig. 3 is a cross-sectional view of the molding instrumentalities illustrating the manner in which they cooperatein molding arshoe bottom unit;

Fig. 4 is a detail sectional View on the line IV-IV of Fig. l;

Figs. 5 and 6 are views in plan and side elevation, respectively, of a molding device 'which is similar to that shown in Figs. 1 and 2 but which is provided with modified means for locating the bottom unit lengthwise relatively to the molding instrumentalities;

Fig. 7 is a detail sectional view on the line VII-VII of Fig. 6; and

Fig. 8 is a side elevational view of a molding machine of the twin type in which certain features of the present invention are embodied.

rI'he machine illustrated in Figs. l to 4, inclusive, of the drawings is especially designed for use in making shoe bottom or insole units, such as the insole unit A which, as shown, comprises an insole B, a heel-and-shank reinforcing piece C, and a metallic shank stiifener D, the shank portions of the insole and the reinforcing piece being molded both lengthwise and widthwise, the insole and the reinforcing piece being secured together` by means of adhesive, and the shank vstiifenerbeing interposed between those parts.

For the purpose of molding and securing together the shank portions of the insole and the reinforcing piece, the illustrated machine is provided with a yieldable rubber pad I and a rigid form I2. As shown, the form I2 is shorter than the full length of the insole and is adapted to operate upon the heel and shank portions and the rear portion only of the forepart of the insole. The upper or work-engaging surface of the form has the same longitudinal curvature as that of vthebottorn of the last for the shoe in which-the insole is to be incorporated. Trans- Versely, however, the work-engaging surface of the formV may be somewhat more sharply curved than the last bottom in order to provide for overmolding of the shank portion of the insole unit and thus to allow for such reaction of the unit as may occur when the molding pressure is relieved. As shown in Fig. 3, the opposite sides of the form I2 are made flat and parallel to each other to facilitate the use of gage members in connection with the form for locating the reinforcing piece and the insole relatively to the form.

In order that the pad Ill and the form I2 may cooperate for the purpose of molding and securing together a reinforcing piece and an insole in the production of a reinforced insole unit, the pad Ill is carried by a stationary pad box I4 which is secured to the upper ends of two posts I6 which constitute part of the frame of the machine, and the form l2 is supported upon a block I8 which is carried by a reciprocatory crosshead 20 and is located beneath the stationary pad box I4 and is mounted to slide on the posts I6.

The pad I is secured to the under side of a carrier 22 which is mounted upon the pad box I4 with provision for horizontal sliding adjustment relatively to the form I2 in a direction lengthwise of the latter. As shown, the carrier is mounted to slide upon a horizontal bar 24 xed to the under side of the pad box I4, the bar 24 being received in a groove in the carrier 22 and being held in the groove by means of gibs 26 which overlie the opposite lateral margins of the bar and serve to support the weight of the block and the pad. A set screw 28 threaded in the carrier 22 is arranged to engage the edge of the bar 2li to secure the block I8 and the pad I0 in adjusted position with the contoured lower surface of the pad adapted to register with the correspondingly contoured upper surface of the form I2.

The block I8 is provided with a flat upper face 3E! which serves to support the form I2 and the form is held in place on the block I3 and positioned lengthwise relatively to the pad I!) by means of a pin 32 on the block which is arranged to enter a hole 34 in the lower portion of the form I2. The block I8 is pivotally connected to the crosshead 20 so that the form I2 may adjust itself or be adjusted into proper angular position to insure full surface engagement of both the form vand the pad with the component parts of the insole unit which are to be operated upon. For this purpose the crosshead 20 is provided with two spaced uprights 36 which are4 forked at their upper extremities to receive studs 33 carried by uprights 39 on the block I8. The uprights 36 are provided also with lugs 40 which are apertured to receive the posts I6 and thus t0 afford a sliding connection between the crosshead and the posts. The amount of tilting adjustment of the block I8 and the form I2 about the common axis of the studs 38 is limited by means of set screws 42 and 44 which are threaded through lugs i6 on the block and are arranged to engage opposite sides of the crosshead 20, suitable lock nuts [i8 being provided to secure the set screws in adjusted position. The set screws and may be relatively adjusted to cause either the heel or the forepart of the insole or shoe bottom member on the form to be first engaged by the pad and thus to cause the molding pressure to progress lengthwise of the work in either direction as may be found desirable or, as indicated in Fig. 2, they may be adjusted to allow the form I2 a limited amount of freedom in adjusting itself to adapt the longitudinal curvature of its molding face to that of the worlzengaging lower surface of the pad.

In order to locate the form I2 by adjusting it about the pin 32 into a position of longitudinal alinement with the pad IG, locating means is provided in the form of a yoke 5D adapted to engage the heel end of the form at the opposite sides of the latter. The yoke 50 projects upwardly above the upper surface of the form in order that it may function also to locate the reinforcing piece C and the insole B with the edges of those parts alined with the heel end of the form. In order that this upwardly projecting yoke 5@ shall not interfere with the downward movements of the pad ID, the yoke is mounted with provision for vertical yielding movement relatively to the block I8. The yoke lill is also capable of being adjusted in a direction lengthwise of the form to adapt it to function in connection with forms and insole units of different sizes. To permit the above-described vertically yielding movements and horizontal adjustment of the yoke 50 to take place. the yoke is secured to a slide 52 (Fig. l) mounted in guideways 511 in a block 56 carried at the outer end of a horizontal stud 58 (Fig. 2), the latter being slidable in a bore 60 in the block I 8. A stud 62 projecting from the block I8 extends between lugs S4 carried by the block 56 to prevent lll) thelatter from turning about the axis of the -stud 53. The slide 5 2 is acted upon by a spring E6 arranged to hold the slide normally in a posi- `tion determined by engagement of a lug 61 on the slide with an abutment 68 carried by the block 5f. Horizontal adjustment of the block 5S for the purpose of locating the yoke 50 in accordance with the size of the form is effected by means of a hand screw 'lll the shank portion of which is threaded within a bore in the stud 58 and which is confined against longitudinal movement by means of a plate 'l2 one side of which is engaged by the head of the screw while the other side is engaged by means of a collar lli on the screw. The crosshead 2li is adapted to be reciprocated to move the block i8 with the form l2 toward and from the pad l by any suitable means, Such, for example, as that shown in Fig. 8 and hereinafter described.

Provision is made for locating the insole B relatively to the form I2 and for locating the reinforcing piece C relatively to the insole and the form. For this purpose the yoke 5e which engages the heel portion of the form to determine the angular position of the form upon the block i8 is arranged, as hereinbefore mentioned, to engage also the edges at the heel ends of the insole and the reinforcing piece to locate those parts lengthwise relatively to the form and also to locate the heel portions of those parts relatively to the form in directions widthwise of the insole. In order to aline the edges of the shank portions of the insole and the reinforcing piece relatively to the sides of the form, a pair of relatively short gage fingers lii is provided for engagement with the opposite lateral edges of the insole and the reinforcing piece at the rear of the shank portion of the latter, and a pair of relatively long gage fingers is provided for engaging the opposite lateral edges of the insole and the reinforcing piece at the shank portions of those parts. The gage fingers 'i8 are pivoted upon vertical studs 32 upon the vertically yieldable slide 52 and the gage ngers 8i! are also pivoted upon the studs 82 beneath the fingers I8, the arrangement being such that the members of each pair of gage fingers are adapted to swing horizontally toward and from each other. Each of the gage fingers 80 is provided at its free extremity with vertically elongated workengaging surfaces 8d adapting the fingers to engage not only the edges of the insole and the reinforcing piece but also to engage the sides of the form. The short gage fingers 'i8 are also provided with lips ile which project inwardly beyond the surfaces B4 to overlie the work and positively hold it in close engagement with the bottom of the form. Rearward extensions 88 of the short gage ngers 'i8 constitute handles whichV are adapted to be grasped and moved toward each other by the operator for the pur- Dose of separating the work-engaging extremities of the fingers to facilitate the placing of the insole and the reinforcing piece upon the form. Downward extensions Sil of the free extremities of the fingers 'l5 are arranged to engage the edges of the insole and the reinforcing piece as well as the sides of the form and also to engage the long gage lingers 8d so as to separate the latter when the short ngers are separated as above described. A spring i12 connecting the short gage fingers l@ and a similar spring S35i connecting the long gage ngers BEF normally hold the gage lingers in position to perform their g'aging functions, the operative positions of the gage ngersbeing determined by engagement of their free extremities with the opposite sides of the form.

The gage ngers 'i8 and 8 and the yoke Eil, being mounted upon the vertically yieldable slide 52, are capable of being displaced relatively to the form l il to avoid interference with the molding operation when the form is raised to cooperate with the pad. For the purpose of vertically displacing the yoke E@ and the gage fingers relatively to the form Iii a vertically adjustable abutment 96 is carried by the pad block 22 and arranged to engage one of the pivot studs 32. While the gage fingers and the yoke are being thus displaced, inclined cam surfaces 98 (Fig. 4) at the extremities of the fingers 'i8 serve, by engagementA with the edges of the reinforcing member, to separate these gage fingers sufiiciently to withdraw the lips 86 from their overlapping relation to the reinforcing member, thereby exposing the entire upper surface of that member for engagement with the pad le.

Before the component parts of an insole unit are assembled with the use of this machine coatings of adhesive are applied to those portions of an insole and a reinforcing piece which are to be secured together, and a shank stiffener is assembled with the reinforcing piece, for example by having the opposite ends of the stiffener thrust through apertures or slots e in the reinforcing piece. In the use of the above-described machine, after a form of the proper size has been placed in position upon the block i3, the operator separates the gage fingers 'i8 and 8i! by grasping the extensions S3 of the fingers 'i8 and then places an insole upon the form with the adhesive-coated surface of the insole uppermost and thereafter places a reinforcing member upon the insole with the adhesive-coated surface of the reinforcing member lowermost, care being taken to engage the rear edges of both the insole and the reinforcing member with the yoke 5e. The operator then releases his grasp upon the extensions 83 of the fingers '48, whereupon both sets of fingers I3, 80 are moved inwardly by their springs 52 and 94 until they engage opposite sides of the form l2. The insole and the reinforcing member will then each be positioned with their rear edges alined with the rear edge of the form and with their opposite lateral edges alined with the opposite sides of the form. The machine is then operated to cause the form i2 to rise and apply pressure to the work and thereby to secure the insole and the reinforcing member together and to mold them to the contour of the bottom of the form. As hereinbefore set forth, the bottom of the form is shaped to overmold the insole and reinforcing member transversely to such an extent that after the molding pressure has been subsequently released and the insole has been i7 permitted to react, the transverse curvature through the shank portion of the insole will conform exactly to that of the bottoni of a last, such as that upon which a shoe having the insole unit incorporated therein is to be made.

In accordance with an improvement in the above-described method of making reinforced insole units, which improved method is disclosed and claimed in my hereinbefore mentioned copending application Serial No. 669,842, an insole and a heel-and-shank-reinforcing piece (to each of which a coating of adhesive has previously been applied) and a longitudinally arched shank stiffener are assembled with the shank stiffener Cil interposed between the insole and the reinforcing piece, and the insole and the reinforcing piece are secured against accidental displacement and thereafter the assembled parts are acted upon by cooperating molding members which mold the insole and the reinforcing piece and adhesively secure these parts together. In Figs. 5 to 8 an insole unit of this type is illustrated, the insole proper being indicated at B', the heeland-shank-reinforcing piece at C', and the shank stiffener at D', the latter having a spur d' struck up from its rear portion for entering the reinforcing piece to assist in holding the shank stiffener in place.

In carrying out this improved method, the shank stiffener D', which is longitudinally arched to correspond to the longitudinal curvature in the shank portion of the bottom of the last, is first laid upon the insole, the longitudinal relation of the parts being gaged from the toe of the insole to insure that the forward extremity of the shank stifiener shall be located accurately in a desired longitudinal relation to the break line in the completed insole unit and thereafter the reinforcing piece is laid upon the insole over the shank stiffener, the longitudinal relation of the reinforcing piece to the insole being gaged from the heel end of the latter. These parts are preferably secured together to insure against accidental displacement or misalinement during subsequent handling thereof by means of pressure applied to the heel portions of the insole and the reinforcing piece which causes the parts to stick together throughout a relatively small area and preferably this pressure serves also to hold the shank stiffener in place by causing the spur d formed on the shank stiffener to embed itself within the material of the reinforcing piece. For the purpose of molding the insole and the reinforcing piece thus assembled and temporarily secured together, and. completing the operation of adhesively securing these parts together, a machine embodying the improved features of construction disclosed in Figs. 5 to 8, inclusive, may be employed.

In the improved machine snown in these figures, the molding instrumentalities comprise a yieldable pad and a rigid form ||2 corresponding to the pad E8 and the form i2 already described. The pad H2 is carried by a stationary pad box ||4 which is secured to the upper ends of two posts ||6 which constitute part of the frame of the machine, and the form l2 is supported upon a block H8 which is carried by a reciprocatory crosshead |26 that is located beneath the stationary pad box H4 and is mounted to slide on the posts H6. The pad is secured to the under side of the carrier |22 which is mounted on the pad box I4 with provision for horizontal sliding adjustment in a direction lengthwise of the pad and form. The block H8 carries studs |38 which are received in the forked upper extremities of two spaced uprights |35 carried by the crosshead |20, thereby pivotally connecting the block to the crosshead so that the form ||2 can be adjusted about the axis of the studs |38 so as to position the form in proper angular position for cooperation with the pad Ui. The amount of such tilting adjustment of the form relatively to the pad is limited by means of set screws |62 and |44 carried by the block I8 and arranged to engage opposite sides of the crosshead |20. For the purpose of determining the angular relation of the insole unit relatively to form a pair of relatively short gage fingers |18 is provided for engagement with the opposite lateral edges of the insole and the opposite sides of the form at the rear of the shank portions of the latter and a pair of relatively long gage fingers |80 is provided for engaging the opposite lateral edges of the insole unit and the form in the shank portion of the latter. The gage fingers |18 and |80 are pivoted upon Vertical studs |82 supported by a vertically yieldable slide |52 carried by a block |56 which is mounted for adjustment lengthwise of the form in the block H8. A spring |92 connects the short gage fingers |18 and a similar spring |94 connects the long gage fingers |80, these springs functioning normally to hold the gage fingers in positions to perform their gaging functions, the operative positions of the gage fingers being determined by engagement of their opposite extremities with the opposite sides of the form. Except as hereinafter described, the construction and arrangement of the various parts already referred to are substantially the same as of corresponding parts already described in connection with the form of the machine disclosed in Figs. l to 4, inclusive. Moreover, the gage fingers |18 and |80 are mounted in substantially the same manner as the gage fingers 'i8 and 88 so that they may be adjusted lengthwise of the form and so that they may be displaced relatively to the form to avoid interference with the molding operation, and the pad carrier 22 is provided with an abutment |96, similar to the abutment 95, for effecting such displacement of the gage fingers |18 and |80.

In the form of the machine disclosed in Figs. and 6, the form l2 is xedly secured relatively to its supporting block I8 by means of two dowel pins 28E! carried by the block and extending into holes 202 in the lower side of the form. The gage fingers |89 differ from the gage fingers 80 only inasmuch as they are provided with lips 204 for overlying the` insole unit to assist in holding the shank portion of the latter against the form and thus to aid in securing the proper longitudinal relation between the unit and the form prior to the movement of the form into molding position. The lips d are preferably formed by the upper arms of angle pieces 288 which are secured to the gage fingers by screws 208 which extend through slots 2|EJ, the upturned free extremities of the gage fingers thus enabling the lips to be adjusted vertically to adapt them for use in connection with insole units of different characteristics. The upturned extremities of the gage ngers |13 and |88 are provided with inclined cam surfaces 292 (Fig. '7), corresponding to the cam surfaces 98, hereinbefore described, for withdrawing the lips of the fingers from the insole units when upward movement of the gage fingers is arrested by means of the abutment |96. In this improved form of the machine also the insole units, instead of being located lengthwise relatively to the form by means of a yoke corresponding to the yoke 5G, are located by means of a gage 23) having an elongated edge portion arranged to extend crosswise of an insole unit to be molded and to engage the forward end of the shank stiffener which is associated with the insole unit and which, as shown, projects a substantial distance beyond the end of the reinforcing piece, the gage 23B being so positioned as to locate the shank stiffener so that the longitudinal curve of the latter will conform to the longitudinal curvature of the form.

In order to engage the edge at the forward end of the shank stiffener the gage 230 must extend between the form and the pad and in order that the gage shall not interfere with the movement of the pad toward the form, for the purpose of effeoting the molding operation, provision is made for retracting the gage 230 to an inoperative position out of the path of the pad. For this purpose the gage 238 is mounted upon an arm 232 which is pivoted at 23d upon the block which supports the form and the arm 232 is connected by means of a rod 236 with the carrier to which the pad is secured, the construction and arrangement being such that upon upward movement of the form E22 the gage 238 will be swung toward the left in Fig. 6 until it iinally assumes the position shown at X in Fig. 8, and upon the downward movement of the form l2@ the gage 23@ is swung toward the right in Fig. 6 for the purpose of returning the gage into operative position.

As shown, the gage 238 is pivoted at fidi) to a block 242 which is secured by means of a screw 234 to the arm 232 and the gage 222 is extended beyond its pivot 238, the extension oi' the gage carrying an adjusting screw 243 the inner end of which bears against a lug 228 on the block 222. The adjusting screw 228 is provided with a lock nut 289 for securing it in adjusted position.

The upper end of the rod 236 is pivoted at 288 to the pad carrier 522 and at its lower end the rod 238 extends through a bore in a stud 252 which is swiveled in the arm 232. The rod 236 is secured to the stud 252 by means o2 a set screw 253. The above-described mounting of the gage 238 is such that when the pad and the form are separated as shown in Fig. 6, the gage will be operatively positioned with its pointed free extremity in contact with the upper surface of the insole B and engaging the edge at the front end of the stilener D', but as the form moves upwardly for the purpose of cooperatively engaging the pad lll) the gage 233 will be retracted into a position removed from the path of the form. By loosening the set screw 253 and turning the adjusting screw 2&8, the gage 23E) may be adjusted to accommodate insoles having shank stiieners the forward or table portions of which are of diierent lengths. In this way also the gage 233 may be adjusted to compensate for diierent adjustments of the form l l2 and its supporting .block l I8 about the axis of the studs |38.

It is preferable that the machine, whether embodying the gaging means disclosed in Figs. 1 to e or that disclosed in Figs. to 8, shall be made as a twin or double machine in which two sets of operating devices are arranged to act in alternation so that the operator can be unloading and loading one side of the machine while the other is exerting pressure upon the work. Accordingly, the machine has been illustrated in Fig. 8 as embodied in a construction of the twin type com1 prising two pads H8 and, two forms H2. As shown, the pad boxes H4 carrying the pads lill are each fixedly secured between posts H the lower ends of which are secured to pillers 288 which are bolted to a base 262, and the cross* heads 22d which carry the forms l l2 are reciprou cated by two toggle mechanisms each of which comprises an upper toggle link 260. and a lower toggle link 226 pivoted at 268 to each other, each upper link 283 being pivoted at 278 to its respective crosshead 228 and each lower toggle link 266 being pivoted at its lower end 272 to the end of a lever 274 mounted upon a xed pin 275. There are two fixed pins 278 and two levers 27d, one set being associated with each set of toggle mechanisin. The two toggles are further connected by a single link 278 connecting the two lower toggle links 282 so that the operation of one toggle will cause reverse operation of the other, or, in other words, movement of the link 278 in either direction will cause reverse operation of the two toggles. The link 278 is operated by a link 279 which is located directly behind the link 278, one end of the link 279 being connected to the link 278 and the other end to an eccentric wrist pin 28E) upon a gear 232 which is turned by a pinion 283 which in turn is operated through a clutch 28% through a suitable pulley 238 and intermeshing gears 298 :und 292. The clutch 288 is so constructed and arranged that it causes an exact half revolution of the gear 282 and then automatically disconnects that gear from the pulley 288. Thus, the operation or the clutch 286 will cause the link 278 to move from one extreme position at the right or left to its other extreme position at the left or right, causing one of the two toggles to break and the other to make. The inner ends of the levers 272 overlap and their overlapping ends are arranged to cooperate with an abutment mounted in the lower end of a heavy spring 234 the upper end of which bears against a fixed but adjustable abutment (not shown), the spring being compressed so as to operate through the levers 272 and the two toggle mechanisms to cause the forms H2 to exert heavy pressure upon the insole units when the toggles are straightened and the forms `are in cooperative relation to the pads H8.

The above-described mechanism is substantially the same in construction and mode oi operation as corresponding mechanism disclosed in United States Letters Patent No. 1,549,243, granted August 1l, 1925, upon application of E. E. Winkley, and reference may be had to said patent for an understanding of details of construction not herein specifically described. The clutch 288 is arranged to be operated by means of a bell-crank lever 330 one arm of whichis connected with the clutch while the other arm is engaged by a rocker member 38H which is connected, by meansof a vertical rod 322, with an operating or starting lever 393 which is conveniently located at the front of the machine. As shown, the lever 23d is pivoted at 3D3 to a crossbar 388 which connects the lower portions of the posts H8 at the front of the machine, the lever. 38d being in the form of a bell crank and having its short arm forked to straddle a block 3i 2 to which the lever arm is pivotally connected at 3M] and which is tapped to receive the threaded upper portion of the rod 382, the construction and arrangement of the lever 3M and the rod 382 being such that movement of the lever 332 in a counterclockwise direction will result in throwing in the clutch 285 to start the machine in operation.

in order to insure that the operator shall remove both hands from between the form l I2 and the pad l Hl which are next vto be moved into operative relation and thereby to guard against injury to the operators hands, a locking lever 3M is provided, the latter being pivoted at 3HE to the crossbar 308 and having a depending portion hooked at its lower extremity, as shown at l, to extend beneath the lower end of the block 352 for engagement with a locking 'face or shoulder 3l@ so as to prevent operative movement of the lever 203 until the locking lever has been swung into position to withdraw its hooked portion M8 from beneath the block 3I2. A spring 323 connects the lower end of the lever 3M with the rod 382, the arrangement being such that the spring serves not only to return the operating lever 304 to its initial position after an operation of the machine but also normally to hold the lever 3 I4 in locking position wherein it functions to prevent manipulation of the operating lever. As shown, the spring 320 acting through the rod 302 tends to hold the block 3|2 seated in a notch formed in the lower arm of the lever 3M, the notch defining a shoulder 322 arranged to cooperate with the block to determine the normal position of the lever 304, and a second shoulder 324 arranged to cooperate with the block 3I2 to determine the normal or operative position of the locking lever 3l4. Before the operating lever 304 can be swung, in a counterclockwise direction, to throw in the clutch 236, the locking lever 3M must be swung in a clockwise direction to withdraw its ,hooked lower extremity 3I8 from beneath the block 3 l2 so as to release the operating lever. The two levers 304 and 3l4 are so arranged that both the operators hands must be employed for operating these levers. Consequently there is no possibility of either hand of the operator being positioned where it can be injured by action of the machine. As shown, the block 3l2 is provided with ratchet teeth 322 for cooperation with a detent plate 324 which is xedly secured to the hooked extremity of the locking lever 314 to prevent an operator from manipulating the levers 304 and 3l4 so as to depress the rod 302 and move the clutch lever 300 an amount less than required to throw the clutch and thereafter throwing the clutch by further manipulation of the lever 304 only, in which event there would be no positive insurance that one of the operators hands might not be in such a position as to be injured by the upwardly moving form. To insure against assembly of the block 3l2 with the levers 304 in such a position that there will be no ratchet teeth arranged to be engaged by the detent plate 324, a second set of ratchet teeth 326 are provided at the lateral edge of the block 3I2 which is opposite the edge having the teeth 322.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent of the United States is:

1. In a machine for molding shoe bottom parts, in combination, relatively movable pressure applying members, a form carried by one of said members, a pad carried by the other o said members, and a gage member for relatively locating the form and the pad constructed and arranged to engage also a shoe bottom member to be operated upon and to locate said shoe bottom member relatively to the form and the pad.

2. In a machine for molding shoe bottom parts, in combination, relatively movable pressure applying supporting members, a form carried by one of said members, a yielding pad carried by the other of said members, and means for locating the form relatively to its supporting member comprising a gage constructed and arranged to engage the form and to engage also a shoe bottom part on the form to locate said part lengthwise relatively to the form and the pad.

3. In a machine for molding shoe bottom units, in combination, a form and a pad relatively movable into cooperative relation for molding the shank portion of a shoe bottom unit, a gage arranged to engage a shoe sole substantially at the break between the shank and the iorepart and to cooperate With the forward end of a shank stiiener secured to the sole to locate said unit lengthwise relatively to the form and the pad, and means for displacing said gage from operative position during relative movement of said form and said pad into cooperative molding relation.

4. In a machine for molding insole units, in combination, a form and a pad relatively movable into cooperative relation for molding an insole unit, a gage movable to and from a workengaging position between the pad and one face of the unit and having an elongated edge portion arranged to extend crosswise of the unit for engaging the edge face at one end oi a shank stifiener constituting a portion of the unit and locating said unit lengthwise relatively to the form and the pad, and means for relatively displacing said gage and said form during relative movement of said form and said pad into cooperative molding relation.

5. In a machine for molding shoe bottom parts, in combination, a form, a pad movable into cooperative relation with said form for molding a shoe bottomv part, means for locating said shoe bottom part widthwise relatively to said form and said pad, a displaceable gage for locating said bottom part lengthwise relatively to said form and pad, said gage being normally located in operative position in the path of movement of said pad, and connections between said gage and said pad for displacing said gage from operative position upon movement of said pad toward said form.

6. In a machine for molding insole units, in combination, a pad and a form relatively movable toward and from each other and shaped to mold the shank portion of an insole unit, a gage member constructed and arrangedv to engage one end of the form and the corresponding end of an insole unit on the form relatively to locate the form and the insole unit, said gage member being yieldable to avoid engagement with the pad when the form and pad are relatively moved toward each other, and means for causing said gage member to yield during said relative movement.

7. In a machine for molding shoe bottom parts, in combination, a form and a pad relatively movable toward and from each other to mold a shoe part between them, a pair of gage members constructed and arranged to engage the opposite edges oi a shoe bottom part on said form, said gage members being mounted for movement to and from work engaging positions and being also yieldingly movable in directions at right angles to those of their work engaging movements, and means other than the pad and the form for effecting such yielding movement of said gage members to avoid interference with the relative movement of the pad and the form.

8. In a machine for molding shoe bottom parts, in combination, relatively movable supporting and pressure-applying members, a form carried by one of said members, a pad carried by the other of said members, a pivotal connection between said form and its supporting member, and means engageable with said form and an insole unit on said form for locating the form in a predetermined position of adjustment about its pivotal connection with its supporting member and for locating said unit relatively to the form.

9. In a machine for molding shoe bottom parts, in combination, relatively movable supporting and pressure-applying members, a form carried by one of said members, a pad carried by the other of said members, la pivotal connection between said iorm and its supporting member, means engageable with said form and an insole unit on said form for locating the form in a predetermined position of adjustment about its pivotal connection with its supporting member and for locating said unit relatively to the form, and means for adjusting said pad relatively to said form.

10. In -a machine for molding insole units in combination, relatively movable supporting and pressure-applying members, a form pivotally connected at one end with one of said members, a pad carried by the other of said members, means for adjusting the pad relatively to its supporting member, means constructed and -arranged to engage the opposite end of the form and the edge of an insole unit on the form for locating the form in a predetermined position of adjustment about its pivot-a1 connection with its supporting member and for locating the insole unit lengthwise on the form, and means for locating the insole unit widthwise on the form.

11. In a machine for molding shoe bottom parts, in combination, -a stationary pad having a contoured molding surface, a form located below said pad and movable toward the pad to cooperate with the latter to mold a shoe bottom part, said form being capable of adjustment -about an axis perpendicular to the direction of said movement and said pad being adjustable in a direction at right angles to said axis, means for adjusting said form, and means for securing said pad in adjusted position.

l2. In a machine for molding shoe bottom parts, in combination, a pad, a form movable toward said pad for cooperating with the pad to mold a shoe bottom part, said form being adjustable about an axis perpendicular to the direction of movement of the form, means for adjusting the form about said axis, and devices engageable with the form and with a shoe bottom part on the form in different positions of adjustment of the form for positioning said part relatively to the form.

13. In a machine for molding insole units, in combination, a yielding pad, a support movable 'toward and from the pad, a form carried by said support, means for reciprocating said support to move the form into and out of cooperative relation to the pad, a pair of gages yieldingly mounted on said support for engaging the opposite sides of the form and the opposite lateral edges of an insole unit on the form to position the insole unit widthwise relatively to the form, and means for causing said gages to yield relatively to said form to avoid engagement with said pad.

14. In a machine for molding shoe bottom parts, in combination, a pad, a form movable toward said pad to mold a shoe bottom part on the form, a pair of gage ngers adapted to be held yieldingly against opposite sides oi' the form, said ngers having upward extensions adapted to engage the opposite lateral edges of said part and having inwardly extending lips adapted to overlie the exposed face oi said part, and said form being movable relatively to said gage fingers as it moves towardsaid pad, and means for separating said gage ngers as the form moves relatively thereto to Withdraw said lips from engagement with the face of the shoe bottom part.

15. In a machine for molding insole units, in combination, a pad, a form for cooperating with the pad to mold an insole unit, a pair of gage ngers adapted to be held yieldingly against the opposite sides of the form, said iingers having upward extensions adapted to engage the opposite lateral edges of the heel portion of an insole unit on said form and having inwardly extending lips adapted to overlie the exposed face of said unit, a second pair oi gage fingers adapted to be held yieldingly against opposite sides of the form, said ngers having upward extensions adapted to engage the opposite lateral edges of the shanl'; portion of said unit and having inwardly extending lips adapted to overlie the upper face of the unit and said form being movable relatively to said pairs or gage ngers, and means for separating the gage fingers ci each pair during said movement of the form to withdraw said lips from engagement with the face of the insole unit.

16. In a machine for molding shoe bottom parts, in combination, a pad, a form movable toward said pad to mold a shoe bottom part on said form, a pair of gages :for engaging the opposite lateral edges of a shoe part on the form to locate it relatively to the form, a second pair of gages for engaging the opposite lateral edges of the shoe part in locations spaced lengthwise of the shoe part from those engaged by the other gages, all of said gages being capable of yielding in a direction away from said pad, means for pressing the members of both pairs of gages toward each other, means operative during movement of the form toward the pad for separating the members of one pair of gages, handles on the members of said pair of gages whereby the latter may be manually separated to facilitate insertion of the work, and means carried by said members constructed and arranged to engage the members of the other pair of gages to separate the latter when the members of the first pair of gages are manually separated.

I7. In a machine for molding shoe bottom parts, in combination, a pad, a form movable toward the pad to mold a shoe bottom part, gaging means adapted to partake of the movement of the form and arranged to locate the shoe bottom part on the form, means for adjusting the gaging means lengthwise of the form, and means for arresting the movement of the gaging means before the form cooperates with the pad to avoid interference of the gaging means with the pad.

18. In a machine for molding shoe bottom parts, in combination, relatively movable pressure-applying members one of which is adapted to support molding forms of different sizes, a pad carried by the other of said members for cooperating with a form to mold a shoe bottom part,

A gages adapted to be positioned by engagement with said form for locating a shoe bottom part on said form, and means for adjusting said gages to adapt them for cooperation with forms of different sizes.

19. In a machine for molding insole units, in combination, relatively movable supporting and pressure-applying members, a pad carried by one of said members, a pin carried by the other of said members for entering holes in forms of different sizes to locate a selected form on said member, a gage adjustably mounted on said member for engaging a form supported by said member to locate the form in a predetermined position of angular adjustment about said pin, and gaging means mounted for adjustment in unison with said gage for locating an insole unit on said form.

20. In a machine for molding insole units, in combination, relatively movable supp-orting and pressure-applying members, a pad carried by one of said members, means carried by the other of said members for locating forms of `diiTerent sizes thereon, a carrier adjustably mounted on said Cil form-supporting member, an end gage on said carrier for engaging an insole unit on a selected form supported by said member to locate the insolc unit lengthwise relatively to the form, side edges on said carrier for locating the insole unit widthwise on the form, and means for adjusting said carrier relatively to said member to position said gages for use in conjunction with forms of diierent sizes.

2l. In a machine for molding insole units, in combination, relatively movable pressure applying devices, cooperating molding members carried by said devices, a` gage for locating an insole unit lengthwise relatively to said molding members, said being mounted for movement between two positions in one of which it is operatively positioned in the path of relative movement of said molding members and in the other of which it is located out of said path, and positively operated mechanism for moving said gage constructed and arranged to move the gage into operative position during movement of said molding members away from each other and to retract the gage during movement of said molding members toward each other.

22. In a machine for molding insole units, in combination, a pad and a form relatively movable toward and from each other and adapted to cooperate to mold an insole unit, a gage movable toward and from an operative position between the form and the pad for locating the unit lengthwise relatively to the form and the pad, and mechanism positively operable upon relative movement of the form and the pad away from each other to operatively position said gage and upon relative movement of the form and the pad toward each other to retract said gage from operative position.

23. In a machine for molding shoe bottom units, in combination, a pad and a form movable toward and from the pad for cooperating with the latter to mold a shoe bottom unit having a shank stiiiener associated therewith, a gage associated with said form and movable toward and from an operative position between the form and the pad for engagement with the forward end of the shank stiilener to locate the shoe bottom unit lengthwise relatively to the form, means for moving the form toward and from the pad, and connections between the gage and the pad constructed and arranged operatively to position the gage upon movement of the pad away from the form and to retract the gage upon movement of the pad toward the form.

24. In a machine for molding insole units, in combination, a stationary head, a yieldable molding pad carried by said head, a reciprocatory crosshead, a molding form carried by the crosshead, mechanism for moving the crosshead toward and from the stationary head to cause said pad and said form to cooperate to mold an insole unit on said form, an arm movably mounted on said crosshead, a gage nger on said arm for engaging said insole unit to locate it lengthwise on said form, and connections between said carrier and said stationary head constructed and arranged to move said gage ringer to and from operative position as said crosshead reciprocates.

25. In a machine for molding shoe bottom parts, in combination, a stationary head, a yieldable molding pad carried by said head, a reciprocatory crosshead, a holding form carried by the crosshead, mechanism for moving the crosshead toward and from the stationary head to cause said pad and said form to cooperate to mold a shoe bottom part, an oscillatory arm supported by said crosshead, a gage finger on said arm for engaging said shoe bottom part to locate it lengthwise on said form, and a link connecting said arm and said stationary head for moving said gage nger to and from operative position as said crosshead reciprocates.

26. In a machine for molding shoe bottom parts, in combination, a stationary head, a yieldable molding pad carried by said head, a reciprocatory crosshead, a carrier pivotally mounted on said crosshead, a molding form on said carrier, means for adjusting said carrier about its pivotal connection with said crosshead to adjust said form angularly relatively to said pad, mechanism for moving said crosshead toward and from said stationary head to cause said pad and said form to cooperate to mold a shoe bottom part, an arm pivotally mounted on said carrier, a gage adjustably mounted on said arm for engaging said shoe bottom part to locate it on said form, a link connecting said arm and said stationary head for moving said gage to and from operative position as said crosshead reciprocates, a pivotal connection between said link and said arm constructed and arranged to permit relative adjustment of the link and the arm, and means for adjusting said gage relatively to said arm.

27. In a machine for molding shoe bottom units, in combination, a pad and a form relatively movable toward and from each other and adapted to cooperate to mold a shoe bottom unit having a shank stiffener associated therewith, means constructed and arranged to engage a shoe bottom unit interposed between the form and the pad and to locate said unit widthwise relatively to the form and pad, and a gage member engageable with said shank stiiener to locate said unit lengthwise relatively to the form and the pad.

28. In a machine for molding shoe bottom units, in combination, a pad and a form relatively movable toward and from each other and adapted to cooperate to mold a shoe bottom unit having a shank stiffener associated therewith, means constructed and arranged to engage a shoe bottom unit interposed between the form and the pad and to locate said unit widthwise relatively to the form and pad, and a gage member adapted to extend between the form and the pad to engage said shank stiffener to Ylocate said unit lengthwise relatively to the form and the pad, said gage member being mounted for movement into an out-of-the-way position to facilitate cooperation of the form and the pad.

29. In a machine for molding yshoey bottom units, in combination, a paid and a form relatively movable toward and from each other and adapted to cooperate to mold a shoe bottom unit having a shank stiiener associated therewith, means constructed and arranged to engage a shoe bottom unit interposed between the form and the pad and to locate said unit widthwise relatively to the form and pad, a gage member adapted to extend between the form and the pad to engage said shank stiilener to locate said unit lengthwise relatively to the formv and the pad, said gage member being mounted formovement into an out-of-the-way position to facilitate cooperation of the form and the pad, means for moving said pad and said form toward and from each other, and vmeans for operatively positioning said gage member during the movement o1- the form and' the pad away from eachother and 75 for retracting said gage member during the movement of the pad and the form toward each other.

30. In a machine for molding shoe bottom parts, in combination, a stationary yielding pad having a contoured lower molding face, a presser member movable toward and from said molding face and having a at upper surface adapted to support molding forms of different sizes, a solid form having a at lower surface resting upon the at upper surface of said presser member and having a contoured upper surface adapted to cooperate with said pad to mold a shoe bottom part, and a dowel pin carried by said presser member and engaged within a hole in said form for detachably securing the form to the presser member.

31. In a machine for molding shoe bottom parts, in combination, a stationary yielding pad having a contoured lower molding face, a presser member movable toward and from said molding face and having a flat upper surface adapted to support molding forms of different sizes, a solid form having a at lower surface resting upon the at upper surface of said presser member and having a contoured upper surface adapted to cooperate with said pad to mold a shoe bottom part, means for relatively locating said form and said presser member, and engaging means carried by said presser member for loc-ating a shoe bottom part relatively to said form.

32. In a machine for molding shoe bottom parts, in combination, a stationary yielding pad having a contoured lower molding face, a presser member movable toward and from said molding face and having a flat upper surface adapted to support molding forms of different sizes, a solid form having a at lower surface resting upon the flat upper surface of said presser member and having a contoured upper surface adapted to cooperate with said pad to mold a shoe bottom part, gages yieldingly held in engagement with the opposite sides of said form for positioning a shoe bottom part widthwise relatively to the form, lips carried by said gages for overlying said part tov assist in holding it against said form, said lips being adjustable vertically relatively to said gages, and means for clamping said lips to said gages in different positions of vertical adjustment.

JOHN M. WI-IELTON.

CRTIFICATE oF CRRCTITON. Patent No. 2,065,465. December 2, 193.;

JOHN M. WHELTON.

it is hereby certified that error appears in the printed specification of' the above numbered patent requiring correction as follows: Page 8, first column, line 5, claim 20, for the word "edges" read gages; and, that the said. Letters Patent should be read with this correction therein that the same may conform to the record of vthe oase in the Patent. Office.

Signed and sealed. this 25rd dey of March, A. D. 1937.

Henry Van Arsdale (Seal) Acting Commissioner of Patents. 

